Organelle Ultrastructure (Endoplasmic, Golgi, Lysosomes, Cell wall, Vacoules)

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9 Terms

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Rough endoplasmic reticulum

  1. Consists of flattened membrane bound sacs called cisternae

  2. Makes proteins


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Smooth endoplasmic reticulum

  1. Makes carbohydrates and lipids

  2. Has no ribosomes

  3. Consists of tubular sacs


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Golgi apparatus

  1. Consists of a stack of flattened membrane bound sacs called cisternae

  2. Modifies/packages proteins, carbon and lipids

  3. Also makes vesicles for transporting molecules


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Vesicle

  1. Phospholipid spheres

  2. Has fluid inside

  3. Can carry around substances in a cell, or fuse with cell membrane to move things out of cell, and into other cells.


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Lysosome (Type of vesicle)


  1. Hydrolyses pathogens, dead cells and worm out organelles

  2. By using enzyme called lysozymes


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Cell wall (Function)

  1. Provides strength

  2. Holds cells together


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Cell wall Ultrastructures

  1. In plants, it’s called cellulose

  2. In fungi, it’s called chitin

  3. The middle lamella holds cells together


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Vacuole (Function)

  1. Make plant cells turgid

  2. Stores sugar and amino acids


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Vacuole (Ultrastructure)

  1. Has tonoplast, located outside membrane

  2. Fluid filled